Fluid-pressure heat-engine.



A. WHITEWAY &- U. HUBBARD FLUID PRESSURE HEAT ENGINE.

APPLICATION FILED JAN.Q,1 908. I.

Patented June 1, 1909.

a sums-sum 1,

. HITEWAY & 0. HUBBARD. UID PRESSURE HEA NGINE.

A APPLICATION FILED 6, 1908.

923,226. V Patel lted *1 9] a an -s 2,

A. WHITEWAY & c. HUBBARD.

' FLUID PRESSURE HEAT ENGINE.

APPLICATION FILED mum, 190s.

Patented. June 1, 1909'.

layers within the said boi er shell. In this a a are provided with a single exhaust passage common to both, and this exhaust passage is connected to one end of the cyhndrical shell of the boiler c. The exhaust pipe is connected to the other end of the said boiler shelL'and' the water-tubes f and g are coiled spirally and arran ed in concentric of the heat energy of the exhaust gases from i the internal combustion engine, or a great proportion of such, is utilized in doing useful and effective work by generating steam for use in the steam engine and we are thus able to combine the advantages of the two types of engine and effect great economy. The combination may be utilized for any of the power purposes for which separate engines are now used and we may, by the aid of suitable mechanical arrangements, run the internal combustion engine as ordinarily and allow the exhaust gases to escape directlyas 18 at present the case where the power required or obtained fromsuch is necessary for the work in hand. On the i other hand we work the steam engine in conjunction with the internal combustion engine so as to entail a simultaneous driving effect on the main shaft of the engine or we may arrange the steam engine to be capable of being engaged or disengaged with the main engine or other shaft or part to be driven by the aid of a clutch or similar mechanism. The steam engine can therefore be utilized as an auxiliary to the main internal combustion engine.

What we claim as our invention and desire to secure by Leters Patent is The combination, with an internal combustion cylinder having an exhaust passage, of a boiler-shell, one end portion of the said shell and the said passage being provided with flanges having cross-grooves in their meeting surfaces and the other end portion of the said shell being provided with an outlet for cool as, a water-pipe provided with a series of coi s arranged in said shell and having its end portions arranged in the said cross-grooves, and fastening-devices for securing the said flanges together and clampmg the end portions of the said pipe in the said cross-grooves.

In testimony whereof We have hereunto set our hands in the presence of two witnesses.

ALFRED WHITEWAY. CHARLES HUBBARD.

Witnesses:

AMY E. Evms, JOSEPH BENTON. 

